Charlotte and Isobel visit Patience in prison and tell her she's to have the finest defence lawyer. Job shows George and Agnes the official union vehicle - a tandem. Bradley refuses to pay for the services of Patience's defence, so Isobel says she will pay for the services of Marshall Snelgrove. Agnes tells Austin she's going to carry on with the election. Guy tells Morris that Moscow wants Hesketh to fight in the Spanish civil war.

As the Prince lays the new stone at the Cottage Hospital, McDuff drops his trousers and Isobel and Charlotte arrive naked on Brass Beauty protesting about the rent increases, then the mortar on the trowel explodes due to SBD. All are covered in foam. Jack saves Big Tom with his truss flange. Bradley and Austin realise Morris was behind the explosion and Bradley plans to send him to Australia.

Charlotte inherits a large sum of money on her birthday. Jack refuses a deal with Austin. Guy tells Morris that Moscow wants him as a mole in the church and Agnes moans to McDuff about George's increased sexual libido. Matthew and Charlotte agree to be friends, not lovers. McDuff discovers SBD increases sexual activity in rabbits.

McDuff decides SBD is a hallucinogen. Bradley pays Jack for his work on Big Tom and offers him the lease on the crutch works. Bradley goes to sack the infant school teacher but instead is struck dumb by Cupid's dart and invites her to play piano at the hall. Jack's family spurns his offer of work and tells him he's a traitor to his class.

Morris confronts Matthew about his homosexuality, who doesn't deny it but declares himself celibate. Jack declares his love for Charlotte but she rejects him, wishing he was Matthew. Isobel declares her continuing love for Jack and Lady Patience tells her not to marry Mountfast. Austin and Isobel go hunting rent defaulters but are foiled by Matthew and Charlotte.

Austin tells the family he thinks Bradley is insane. An epidemic is raging and McDuff says the cause is the convenience at the back of the munitions factory. Bradley gives Prudence SBD and then takes advantage of its effects. She wears him out. Bradley tells George to keep using the convenience and McDuff and Agnes wire it up to explode.

Bradley gets out of being certified and turns the tables on Austin. George, blackened but alive, is returned home. Bradley decides to sort out Simon Pugh and help Austin win the election with the help of Mrs Marchington, his father's chiropodist and SBD.

Austin hears Lord Sodbury has died at the chiropodist's which means Seymour Pugh will go to the House of Lords and it will be a walkover for him at the by-election. Jack fails to dissuade Isobel from marrying Mountfast, but she guesses he's done a deal with her mother and tells him her reason is money and she'll look after him.

Bradley tells Austin he has to marry Cynthia Dudcock. Bradley offers to send Man to Paris to paint, as long as he goes with Agnes, but Matthew sees through him. Jack asks Charlotte to marry him - she refuses. McDuff tells Patience of Bradley's plans to expose photos to the BMC and she tells him how to retrieve them.

Hardacre looks at Mountfast's body. Sgt Pepper says a tramp will have done it. McDuff says his brother Inspector McDuff of The Yard is in the area. George tells Agnes of his new position in the UCTT. Charlotte tells Agnes she feels sick in the mornings. Matthew says there's no money to fight the election and Jack offers money to help them.

During round table discussion Bradley tells George pithead baths will be installed in order to get looks workforce on strike. Patience's trial takes place and she is called to the witness box. Bradley asks Charlotte to return home. Patience tells the court how she visited Mountfast on the night of the murder and he was so appalled by his debauchery he committed suicide.

Charlotte receives a solicitor's letter saying she will inherit Mountfast's money. Bradley is informed by future Tory MP his earldom is no-go. He decides to join the other side. Isobel is distressed about the Mountfast inheritance and is seared that Jack will propose to Charlotte, which is exactly what he does. She tells him to hop it.

Bradley and Jack rejoice in the arms sales boosted by the Spanish civil war but Bradley feels a world war would be better. Charlotte is distraught having read that Matthew's been killed in Spain, and gives birth to a boy. Guy tells Morris Stalin wants Bradley out of the way and gives him cyanide to poison Bradley. Matthew appears saying Hesketh was shot in Spain.